| 摘要 |
PURPOSE: A lining board is provided to maintain flatness while in use by securing strong engagement with adjacent lining boards. CONSTITUTION: A lining board comprises transverse beams(10), a cover plate(20), and an engaging member(30). The transverse beams are arranged in parallel. The cover plate is combined with the top of each transverse beam and covers the gap between the transverse beams. The engaging member is combined with the bottom of each transverse beam so that its one end is embedded inside of the transverse beam and the other protrudes outside.
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